@article{artigo1,
  author = {Ahmed Al-Ani},
  title = {{Feature Subset Selection Using Ant Colony Optimization}},
  year = {2005},
}

@article{artigo2,
  author = {Newton Spolaôr},
  title = {{Aplicação de Algoritmos Genéticos Multiobjetivo ao Problema de Seleção de Atributo}},
  note = {{Dissertação apresentada a Universidade Federal do ABC}},
}

@misc{site1,
  author = {Machine Learning Group at University of Waikato.},
  title = {{Weka}},
  howpublished = {\url{http://www.cs.waikato.ac.nz/ml/weka/}},
  note = {Acessado em 21 de Junho de 2011},
}

@Book{livro1,
  author = {Alexander Mood and Franklin Graybill and Duane Boes},
  title = {{Introduction to the Theory of Statistics}},
  publisher = {McGraw-Hil},
  edition = {3th},
  pages = {219-230},
  year = {1974},
}

@ARTICLE{dorigo, 
author={Dorigo, M. and Maniezzo, V. and Colorni, A.}, 
journal={Systems, Man, and Cybernetics, Part B: Cybernetics, IEEE Transactions on}, title={Ant system: optimization by a colony of cooperating agents}, 
year={1996}, 
month={feb}, 
volume={26}, 
number={1}, 
pages={29 -41},  
}

@incollection {j48,
   author = {Youn, Seongwook and McLeod, Dennis},
   affiliation = {University of Southern California Los Angeles CA 90089 USA},
   title = {A Comparative Study for Email Classification},
   booktitle = {Advances and Innovations in Systems, Computing Sciences and Software Engineering},
   editor = {Elleithy, Khaled},
   publisher = {Springer Netherlands},
   pages = {387-391},
   year = {2007}
}